添加微信接口二进制转base64

ruoyi-admin/src/main/java/com/ruoyi/system/controller/WeChatController.java

@@ -54,8 +54,8 @@ public class WeChatController extends BaseController {
     @ApiOperation("获取微信二维码")
     @PostMapping("/findWxCode")
     public AjaxResult findWxCode(@RequestBody WeChatCodeRequest req) {
-
-        return AjaxResult.success(weChatService.findWxCode(req));
+        weChatService.findWxCode(req);
+        return AjaxResult.success();
     }
 
     /**

ruoyi-admin/src/main/java/com/ruoyi/system/service/WeChatService.java

@@ -50,5 +50,5 @@ public interface WeChatService {
      * @param req 获取小程序码请求类
      * @return 微信二维码二进制
      */
-    String findWxCode(WeChatCodeRequest req);
+    void findWxCode(WeChatCodeRequest req);
 }

ruoyi-admin/src/main/java/com/ruoyi/system/service/impl/WeChatServiceImpl.java

@@ -12,12 +12,17 @@ import com.ruoyi.system.domain.dto.request.WeChatRequest;
 import com.ruoyi.system.service.WeChatService;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Service;
+import sun.misc.BASE64Decoder;
 
 import javax.annotation.Resource;
+import javax.imageio.ImageIO;
+import java.awt.image.BufferedImage;
+import java.io.ByteArrayInputStream;
+import java.io.File;
+import java.io.IOException;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
 import java.util.Arrays;
-import java.util.Base64;
 import java.util.Formatter;
 import java.util.HashMap;
 import java.util.Map;
@@ -32,12 +37,11 @@ import java.util.concurrent.TimeUnit;
 @Service
 public class WeChatServiceImpl implements WeChatService {
 
+    static BASE64Decoder decoder = new BASE64Decoder();
     @Value("${wechat.appid}")
     private String appid;
-
     @Value("${wechat.secret}")
     private String secret;
-
     @Resource
     private RedisCache redisCache;
 
@@ -146,7 +150,7 @@ public class WeChatServiceImpl implements WeChatService {
      * @return 微信二维码二进制
      */
     @Override
-    public String findWxCode(WeChatCodeRequest req) {
+    public void findWxCode(WeChatCodeRequest req) {
         String accessToken = this.findAccessToken();
         Map<String, Object> map = new HashMap<>();
         if (req.getWidth() != null) {
@@ -155,6 +159,17 @@ public class WeChatServiceImpl implements WeChatService {
         map.put("path", req.getPath() + "?shanghuId=" + req.getShanghuId());
         String jsonStr = JSONUtil.toJsonStr(map);
         String body = HttpUtil.post("https://api.weixin.qq.com/wxa/getwxacode?access_token=" + accessToken, jsonStr);
-        return Base64.getEncoder().encodeToString(body.getBytes());
+//        BufferedImage image = null;
+//        return Base64.getEncoder().encodeToString(body.getBytes());
+        try {
+            byte[] bytes1 = decoder.decodeBuffer(body);
+
+            ByteArrayInputStream bais = new ByteArrayInputStream(bytes1);
+            BufferedImage bi1 = ImageIO.read(bais);
+            File w2 = new File("D:\\QQ.png");// 可以是jpg,png,gif格式
+            ImageIO.write(bi1, "png", w2);// 不管输出什么格式图片，此处不需改动
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
     }
 }

ruoyi-admin/src/main/java/com/ruoyi/web/controller/common/CaptchaController.java

@@ -1,15 +1,5 @@
 package com.ruoyi.web.controller.common;
 
-import java.awt.image.BufferedImage;
-import java.io.IOException;
-import java.util.concurrent.TimeUnit;
-import javax.annotation.Resource;
-import javax.imageio.ImageIO;
-import javax.servlet.http.HttpServletResponse;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.util.FastByteArrayOutputStream;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RestController;
 import com.google.code.kaptcha.Producer;
 import com.ruoyi.common.config.RuoYiConfig;
 import com.ruoyi.common.constant.CacheConstants;
@@ -19,15 +9,25 @@ import com.ruoyi.common.core.redis.RedisCache;
 import com.ruoyi.common.utils.sign.Base64;
 import com.ruoyi.common.utils.uuid.IdUtils;
 import com.ruoyi.system.service.ISysConfigService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.util.FastByteArrayOutputStream;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.annotation.Resource;
+import javax.imageio.ImageIO;
+import javax.servlet.http.HttpServletResponse;
+import java.awt.image.BufferedImage;
+import java.io.IOException;
+import java.util.concurrent.TimeUnit;
 
 /**
  * 验证码操作处理
- * 
+ *
  * @author ruoyi
  */
 @RestController
-public class CaptchaController
-{
+public class CaptchaController {
     @Resource(name = "captchaProducer")
     private Producer captchaProducer;
 
@@ -36,20 +36,19 @@ public class CaptchaController
 
     @Autowired
     private RedisCache redisCache;
-    
+
     @Autowired
     private ISysConfigService configService;
+
     /**
      * 生成验证码
      */
     @GetMapping("/captchaImage")
-    public AjaxResult getCode(HttpServletResponse response) throws IOException
-    {
+    public AjaxResult getCode(HttpServletResponse response) throws IOException {
         AjaxResult ajax = AjaxResult.success();
         boolean captchaEnabled = configService.selectCaptchaEnabled();
         ajax.put("captchaEnabled", captchaEnabled);
-        if (!captchaEnabled)
-        {
+        if (!captchaEnabled) {
             return ajax;
         }
 
@@ -62,15 +61,12 @@ public class CaptchaController
 
         // 生成验证码
         String captchaType = RuoYiConfig.getCaptchaType();
-        if ("math".equals(captchaType))
-        {
+        if ("math".equals(captchaType)) {
             String capText = captchaProducerMath.createText();
             capStr = capText.substring(0, capText.lastIndexOf("@"));
             code = capText.substring(capText.lastIndexOf("@") + 1);
             image = captchaProducerMath.createImage(capStr);
-        }
-        else if ("char".equals(captchaType))
-        {
+        } else if ("char".equals(captchaType)) {
             capStr = code = captchaProducer.createText();
             image = captchaProducer.createImage(capStr);
         }
@@ -78,12 +74,9 @@ public class CaptchaController
         redisCache.setCacheObject(verifyKey, code, Constants.CAPTCHA_EXPIRATION, TimeUnit.MINUTES);
         // 转换流信息写出
         FastByteArrayOutputStream os = new FastByteArrayOutputStream();
-        try
-        {
+        try {
             ImageIO.write(image, "jpg", os);
-        }
-        catch (IOException e)
-        {
+        } catch (IOException e) {
             return AjaxResult.error(e.getMessage());
         }